/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesCommon/Public/Online/CommerceCommon.h
Retrieve the list of entitlements from a transaction id returned from a checkout call
virtual [TOnlineAsyncOpHandle](API\Plugins\OnlineServicesInterface\Online\TOnlineAsyncOpHandle)< [FCommerceQueryTransactionEntitlements](API\Plugins\OnlineServicesInterface\Online\FCommerceQueryTransactionEntitle-) > QueryTransactionEntitlements ( [FCommerceQueryTransactionEntitlements::Params](API\Plugins\OnlineServicesInterface\Online\FCommerceQueryTransactionEntitle-\Params) && Params )